Naoyasu was a retainer of Toyotomi Hideyoshi and held a fief in Echizen. During the Odawara Campaign, he served Hideyoshi, and after was given a fief worth 20,000 koku. At the Battle of Sekigahara (1600) he was in the Western Army under the command of Ôtani Yoshitsugu but in the course of the fighting switched sides and joined Kobayakawa Hideaki. Afterwards he entered the service of Maeda Toshinaga. In 1606 he drowned in a river in Etchû province. He was also known as Akaza Kyûbei.